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Prepayments and Other Current Assets
9 Months Ended
Sep. 30, 2018
Prepayments and Other Current Assets [Abstract]  
Prepayments and other current assets

(5) Prepayments and other current assets

 

Prepayments and other current assets consisted of the following as of September 30, 2018 and December 31, 2017: 

 

  September 30,  December 31, 
  2018  2017 
Prepaid land lease $47,971  $459,123 
Prepayment for purchase of materials  3,962,957   183,649 
Others  26,443   8,751 
  $4,037,371  $651,523